ASoC: wm8994: check for array index returned

The array 'drc_cfg' of size 3 may use index value -22 (EINVAL)
The array 'retune_mobile_cfg' of size 3 may use index value -22 (EINVAL)

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index b38382cc4b59..dfd997aaadfc 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -383,6 +383,8 @@ static int wm8994_get_drc_enum(struct snd_kcontrol *kcontrol,
         struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
         int drc = wm8994_get_drc(kcontrol->id.name);
 
+        if (drc < 0)
+                return drc;
         ucontrol->value.enumerated.item[0] = wm8994->drc_cfg[drc];
 
         return 0;
@@ -488,6 +490,9 @@ static int wm8994_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
         struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
         int block = wm8994_get_retune_mobile_block(kcontrol->id.name);
 
+        if (block < 0)
+                return block;
+
         ucontrol->value.enumerated.item[0] = wm8994->retune_mobile_cfg[block];
 
         return 0;